This is the start of the 3rd week of my robotics camp. Today, one of the XRPs no longer will run when disconnected from the laptop. The same process worked find last week (update Blockly code, press run, wait for confirmation, disconnect cable, and then press user button). This week, the code will not execute. If the user button is pressed while the cable is connected, the code will run, but will stop if the cable is disconnected. The problem only occurs on one XRP. Any ideas on how to troubleshoot this problem?
Usually when I see this it means the batteries are too low. When plugged into the USB cable it pulls power from there and works, but when disconnected it is not enough to run the motors. The LEDs will still be on, even though there is not enough power for the motors.
That did the trick! You just saved us some needless frustration! (now, if there was only a way to read the battery level)
